'Significant opportunity' to prevent Manchester Arena bombing missed by MI5, inquiry finds

The report found that an MI5 officer considered intelligence about the bomber to be a possible national security concern, but didn't discuss it with colleagues quickly enough. (AP: Owen Humphreys)

The UK's top domestic security service MI5 missed a significant opportunity to take action that might have prevented a deadly suicide bombing in Manchester, a public inquiry has found.

In the final report of the inquiry, chairman Sir John Saunders said it was "not possible" to conclusively say whether any different action would have prevented the explosion, but there was a "significant missed opportunity to take action that might have prevented the attack".